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The Court of Arbitration for Sport has confirmed that it has begun proceedings against Russian curler Aleksandr Krushelnitckii, who won a bronze medal in curling as part of the Olympic Athletes from Russia team at the Pyeongchang Winter Olympics.

Krushelnitckii finished third in the mixed-doubles curling tournament, competing with his wife and teammate, Anastasia Bryzgalova.

Food scientists at the University of Massachussetts Amherst have come up with a technique they say could make it a lot easier to avoid food poisoning.

The main piece of equipment? Your smartphone.

Currently, to identify the bacteria that can get you sick, like E. coli or salmonella, food scientists often use DNA testing.

They obtain samples from, say, raw spinach or chicken skin, by rinsing the food and collecting a tiny bit of bacteria from the water. Then they let that bacteria multiply over 24 hours to get a big enough sample.

The city of Raqqa was the de facto capital of the Islamic State. ISIS fighters were defeated there back in October, and they scattered in all directions. But they left behind a deadly legacy — thousands upon thousands of explosive booby traps.

Now U.S. and Syrian trainers are teaching young men how to dismantle those bombs, at a village on the outskirts of the city.

When it comes to global politics off the rink — most of the spotlight has fallen on North and South Korea. But just as the two Koreas have been making nice, South Korea and Japan have gotten chilly.

On the ice — Nao Kodaira of Japan and two-time gold medalist Lee Sang-hwa of Korea are the world's best at the 500 meter speed skate. They have finished within fractions of a second of each other for years and are constantly compared to one another. Sunday's much-watched showdown between the two was packed with extra meaning because their countries compete so fiercely, too.

The mosh pit is a moving masterpiece. In the sweat-stained mass, you engage a lineage that extends not just to Bad Brains but to a history of collective motion in riots, protests and crowds — motion that seeks change, devotion, sacrifice, sick stage dives. Step back from the vortex and the scene becomes psychedelic, a surging splatter of limbs and hair. A body falls, the mass makes space. A microphone drops from the vocalist to the audience, the mass moves forward.

One of the greatest to ever bless the mic, Big Daddy Kane treated Tiny Desk to an office block party in the true essence of hip-hop. He performed a short set of classics, including "Smooth Operator," "Ain't No Half Steppin'," "Raw" and a bonus freestyle. Through his warm, engaging and devilishly self-effacing style, the pioneer used an interlude between songs to address the intergenerational divisiveness defining rap today and the importance of fans of all ages supporting whatever they like, while "focusing on what's positive and keeping that in the spotlight."

President Trump is facing calls to act in the wake of the latest mass shooting, which killed 17 people Wednesday at a high school in Florida, and the White House is not ignoring them. The president will participate in a pair of listening sessions on school safety this week, and on Monday morning the White House said he supports efforts to improve the federal background check system, something Congress has expressed broad support for without acting on after past shootings.

After the deadliest mass shooting in modern U.S. history in Las Vegas last year, lawmakers discussed imposing restrictions on "bump stocks." The Las Vegas shooter used that type of gun modification, which makes a semiautomatic weapon fire like an automatic weapon, and killed 58 people.

After a gunman killed 26 people at a church in Sutherland Springs, Texas, in November, lawmakers discussed how they could improve the background check system.

Top election officials from across the country grappled with a delicate question this weekend: How do you tackle the threat of election interference, and be transparent in doing so, without further eroding the public's trust in the voting process?

"I'm always trying to straddle the line between sounding the alarm on this issue and being alarmist," said Steve Simon, Minnesota's secretary of state.

After Virginia Harrod was diagnosed with stage 3 breast cancer in 2014, she had a double mastectomy. Surgeons also removed 16 lymph nodes from under her armpit and the area around her breast, to see how far the cancer had spread and to determine what further treatment might be needed. Then she underwent radiation therapy.

Each year, about 31,000 men and women in the U.S. are diagnosed with a cancer caused by an infection from the human papillomavirus, or HPV. It's the most common sexually transmitted virus and infection in the U.S.

In women, HPV infection can lead to cervical cancer, which leads to about 4,000 deaths per year. In men, it can cause penile cancer. HPV also causes some cases of oral cancer, cancer of the anus and genital warts.

Five women were killed Sunday when a gunman opened fire at a Russian Orthodox church in the restive Northern Caucasus region of Dagestan.

Russian news sources quoted a priest from the church in Kizlyar in western Dagestan as saying the attacker, described as a local man in his 20s, began firing on churchgoers as they were leaving following Sunday afternoon service.

Oxfam International says three members of a team it deployed to Haiti in 2010 who were investigated for sexual exploitation there threatened a key witness in the inquiry.

The U.K.-based aid group has come under intense scrutiny in recent weeks after The Times of London reported that some of its staff working in the Caribbean country after a devastating earthquake had hired local prostitutes. Oxfam's senior official in Haiti at the time was among those implicated.

The U.S. women's ice hockey team dismantled Finland in their semifinals matchup at the Pyeongchang Winter Olympics on Monday, scoring goals early and often and claiming a spot in the gold medal game, where they will face Canada.

The U.S. team scored two goals in each of the first two periods; a pair of scores came in less than one minute in the second period.

He's emerged as a fan favorite, an athlete whose talent and personality shine through his skating — and whose sense of humor and humanity have been amplified by the Winter Olympics in Pyeongchang. But Adam Rippon says he's not ready to move from the Olympic Athlete's Village and join NBC.

News that the TV network had offered Rippon a job emerged on Sunday here at the Pyeongchang Games. But one day later, Rippon says he was glad to be asked — but that he still has work to do, cheering for his teammates.

Aleksandr Krushelnitckii, who won a bronze medal in mixed doubles for the Olympic Athletes from Russia curling team, is under suspicion of doping, after reportedly failing a preliminary control test at the Pyeongchang Winter Olympics.

The result hasn't been confirmed; Russian news outlets are reporting that Krushelnitckii's "A" sample had tested positive for meldonium in a preliminary test, and that his "B" sample would be tested to confirm or refute the result. That test is being carried out around midday Monday in South Korea — Sunday night in the continental U.S.

In the wake of tragedy, confusing and conflicting feelings like fear and anger can be overwhelming. In her breakout novel, Rihannon Navin takes readers on the emotional journey that explores some of these feelings.

Only Child centers around a family reconciling with the aftermath of a mass shooting at an elementary school. It's told from the perspective of 6-year-old Zach, who survived the shooting in which his brother Andy died.

Black Panther pounced on the weekend box office, breaking cultural barriers and earning the highest debut ever for a February film, with an estimated three-day domestic gross of $192 million, said Disney, Marvel's parent company.

The opening was the fifth highest-earning of any film, according to Disney. The only other movies that have brought in more are Star Wars: The Force Awakens, Star Wars: The Last Jedi, Jurassic World and The Avengers, according to The Associated Press.

President Trump spent the weekend at his Mar-a-Lago resort tweeting about the Russia investigation after a federal grand jury on Friday indicted 13 Russians and three Russian companies in connection with what prosecutors describe as a covert Russian campaign to help Trump win the presidency.

The first Bible I ever purchased was a New International Version Student Life Bible; it was black with neon pink and green lettering. I picked it up from the bookstore of a church I was invited to in my late teens. This "expanded" version featured maps, reading plans, and questionnaires geared toward teenagers who wanted to learn how to effectively apply biblical principles to their daily lives. In other words, how to learn to be the "salt of the earth."

Gus Kenworthy and Adam Rippon made history in 2018 by being the first openly out, gay male athletes representing the United States in the Winter Olympics. It's been a momentous year for LGBTQ representation, with a reported record number of 15 out LGBTQ athletes, according to Outsports.

It wasn't anything spectacular at the time. When the show first aired on Feb. 19, 1968, it seemed to be a typical children's educational program. On a black-and-white screen, a tall, dark-haired man nearing 40 years of age wandered into a staged living room, softly singing a song as he changed from a blazer into a much softer, cozy cardigan.

That man, Fred Rogers of Mister Rogers' Neighborhood, quickly rose into recognition and a half-century later is still an American icon.

Tommy Rock has had three graduations — high school, college and graduate school. And no one from his family was there — no one to cheer for him, no one to take his picture. And when he came home to Monument Valley, few really cared.

"I didn't get no congratulations or nothing," Rock said. "It was like 'Oh you think you're better than us?' I was like, 'Wow, OK.' "

In late January, NPR global health correspondent Jason Beaubien went to the Rohingya refugee camps in Bangladesh for a series of radio and web reports. It was the week that a plan to send the refugees back to Myanmar was supposed to start. But that program was put on hold because of logistics.